The Carlos Montezuma Collection houses correspondence, speeches, printed materials, and financial records documenting the life of an urban physician and Indian rights activist. Although the collection extends from 1887 to 1980, the bulk of the collection concerns Montezuma's activism from 1877 to 1922.

The Thomas H. Dodge Collection houses correspondence, reports, tribal council minutes and other administrative documentation, newsclippings, and miscellaneous notes. The bulk of the collection documents Dodge's work as Navajo Tribal Council Chairman and Superintendent of the Navajo, San Carlos, Osage, and Truxton Canon Agencies from 1930 to 1960.